Messages in this thread Patch in this message | | | Date | Mon, 13 Nov 2023 04:10:43 -0800 | Subject | Re: [syzbot] [PATCH] Test oob in squashfs readahead | From | syzbot <> |
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Subject: [PATCH] Test oob in squashfs readahead Author: eadavis@qq.com
please test squashfs readahead oob
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 13d88ac54ddd
diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c index 8ba8c4c50770..a60c2be4447e 100644 --- a/fs/squashfs/file.c +++ b/fs/squashfs/file.c @@ -553,6 +553,9 @@ static void squashfs_readahead(struct readahead_control *ractl) if (!pages) return; + printk("p: %p, bs: %d, bl: %d, mp: %d, start: %d, fe: %d, %s\n", + pages, msblk->block_size, msblk->block_log, + max_pages, start, file_end, __func__); for (;;) { pgoff_t index; int res, bsize; @@ -566,6 +569,8 @@ static void squashfs_readahead(struct readahead_control *ractl) max_pages = (expected + PAGE_SIZE - 1) >> PAGE_SHIFT; + printk("p: %p, mp: %d, e: %d,isr: %d, start: %d, %s\n", pages, max_pages, + expected, i_size_read(inode), start, __func__); nr_pages = __readahead_batch(ractl, pages, max_pages); if (!nr_pages) break; diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 22e812808e5c..aad49a62b5ce 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -275,6 +275,8 @@ static int squashfs_fill_super(struct super_block *sb, struct fs_context *fc) if (msblk->block_log > SQUASHFS_FILE_MAX_LOG) goto failed_mount; + printk("bs: %d, bl: %d, %s\n", msblk->block_size, msblk->block_log, __func__); + /* Check that block_size and block_log match */ if (msblk->block_size != (1 << msblk->block_log)) goto insanity;
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